Coarse grains are a term for "flour rice" relative to rice, wheat and white flour, including corn, sorghum, millet, buckwheat, oats, millet, potatoes and various beans.
Exploring the mechanism that coarse grains can lose weight is mainly because coarse grains are rich in dietary fiber. Take corn as an example, its cellulose is 4- 10 times higher than polished rice and refined flour. While dietary fiber can:
1) Obstructs nutrient absorption: In foods in the gastrointestinal tract, dietary fiber absorbs a lot of nutrients while absorbing water, which hinders nutrient absorption. In addition, the indigestible substances in dietary fiber are often the carbon sources needed for the mass reproduction of anaerobic microorganisms. The proliferation of bacteria in the intestine can stimulate intestinal peristalsis and reduce the digestion and absorption ability of nutrients in the intestine.
2) Can't or seldom get energy from it: People mainly get dietary fiber from plant-derived foods such as fruits, vegetables and grains, and digestible plant fiber contains very low energy. Therefore, people get little energy from it. Although crude fiber is rich in energy, because there is no cellulolytic enzyme in human body, it is impossible to decompose crude fiber and obtain energy from it.
3) Promoting gastrointestinal peristalsis: the water-holding capacity of dietary fiber has sponge function, which can adjust the absorption function of glucose and fat in intestinal wall, promote fat decomposition and accelerate gastrointestinal peristalsis, and has obvious lipid-lowering effect.
From this point of view, friends who want to lose weight quickly put coarse grains on the table, they are the healthy choice to lose weight. Modern fast-paced office workers can carry some functional foods rich in dietary fiber with them, and supplement crude fiber anytime and anywhere, so as to lose weight and nourish themselves for a while.